In the spin-off series Ace Attorney Investigations, the player takes the role of prosecutor Miles Edgeworth and in the prequel series The Great Ace Attorney Chronicles, of Phoenix's ancestor Ryunosuke Naruhodo. While the original Japanese versions of the games are set in Japan, the series' localizations are set in the United States (primarily Los Angeles), though retaining Japanese cultural elements. The cases all last a maximum of three days, with the judge determining the outcome based on evidence presented by the defense attorney and the prosecutor. The player takes the roles of various defense attorneys, including Phoenix Wright, his mentor Mia Fey, and his understudies Apollo Justice and Athena Cykes, who investigate cases and defend their clients in court they find the truth by cross-examining witnesses and finding inconsistencies between the testimonies and the evidence they have collected. Additionally, the series has seen adaptations in the form of a live-action film and an anime, and has been the base for manga series, drama CDs, musicals and stage plays.

With storytelling fashioned after legal dramas, the first entry in the series, Phoenix Wright: Ace Attorney, was released in 2001 since then, five further main series games, as well as various spin-offs, prequels and high-definition remasters for newer game consoles, have been released. Ace Attorney is a visual novel adventure video games franchise developed by Capcom.

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